3a0372f9f1
Bug: v8:6917 Change-Id: I4267900b6beed44eeae3df9b3b7a3e58402d6e6e Reviewed-on: https://chromium-review.googlesource.com/899366 Commit-Queue: Michael Achenbach <machenbach@chromium.org> Reviewed-by: Michael Achenbach <machenbach@chromium.org> Cr-Commit-Position: refs/heads/master@{#51084}
221 lines
8.0 KiB
Python
Executable File
221 lines
8.0 KiB
Python
Executable File
#!/usr/bin/env python
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#
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# Copyright 2017 the V8 project authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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import random
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import sys
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# Adds testrunner to the path hence it has to be imported at the beggining.
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import base_runner
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from testrunner.local import utils
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from testrunner.testproc import fuzzer
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from testrunner.testproc.base import TestProcProducer
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from testrunner.testproc.combiner import CombinerProc
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from testrunner.testproc.execution import ExecutionProc
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from testrunner.testproc.filter import StatusFileFilterProc, NameFilterProc
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from testrunner.testproc.loader import LoadProc
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from testrunner.testproc.progress import ResultsTracker, TestsCounter
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from testrunner.utils import random_utils
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DEFAULT_SUITES = ["mjsunit", "webkit", "benchmarks"]
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class NumFuzzer(base_runner.BaseTestRunner):
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def __init__(self, *args, **kwargs):
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super(NumFuzzer, self).__init__(*args, **kwargs)
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def _add_parser_options(self, parser):
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parser.add_option("--fuzzer-random-seed", default=0,
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help="Default seed for initializing fuzzer random "
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"generator")
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parser.add_option("--tests-count", default=5, type="int",
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help="Number of tests to generate from each base test. "
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"Can be combined with --total-timeout-sec with "
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"value 0 to provide infinite number of subtests. "
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"When --combine-tests is set it indicates how many "
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"tests to create in total")
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# Stress gc
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parser.add_option("--stress-marking", default=0, type="int",
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help="probability [0-10] of adding --stress-marking "
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"flag to the test")
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parser.add_option("--stress-scavenge", default=0, type="int",
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help="probability [0-10] of adding --stress-scavenge "
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"flag to the test")
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parser.add_option("--stress-compaction", default=0, type="int",
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help="probability [0-10] of adding --stress-compaction "
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"flag to the test")
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parser.add_option("--stress-gc", default=0, type="int",
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help="probability [0-10] of adding --random-gc-interval "
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"flag to the test")
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# Stress deopt
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parser.add_option("--stress-deopt", default=0, type="int",
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help="probability [0-10] of adding --deopt-every-n-times "
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"flag to the test")
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parser.add_option("--stress-deopt-min", default=1, type="int",
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help="extends --stress-deopt to have minimum interval "
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"between deopt points")
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# Stress interrupt budget
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parser.add_option("--stress-interrupt-budget", default=0, type="int",
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help="probability [0-10] of adding --interrupt-budget "
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"flag to the test")
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# Combine multiple tests
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parser.add_option("--combine-tests", default=False, action="store_true",
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help="Combine multiple tests as one and run with "
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"try-catch wrapper")
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parser.add_option("--combine-max", default=100, type="int",
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help="Maximum number of tests to combine")
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parser.add_option("--combine-min", default=2, type="int",
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help="Minimum number of tests to combine")
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return parser
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def _process_options(self, options):
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if not options.fuzzer_random_seed:
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options.fuzzer_random_seed = random_utils.random_seed()
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if options.total_timeout_sec:
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options.tests_count = 0
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if options.combine_tests:
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if options.combine_min > options.combine_max:
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print ('min_group_size (%d) cannot be larger than max_group_size (%d)' %
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options.min_group_size, options.max_group_size)
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raise base_runner.TestRunnerError()
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return True
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def _get_default_suite_names(self):
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return DEFAULT_SUITES
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def _timeout_scalefactor(self, options):
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factor = super(NumFuzzer, self)._timeout_scalefactor(options)
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if options.stress_interrupt_budget:
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# TODO(machenbach): This should be moved to a more generic config.
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# Fuzzers have too much timeout in debug mode.
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factor = max(int(factor * 0.25), 1)
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return factor
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def _get_statusfile_variables(self, options):
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variables = (
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super(NumFuzzer, self)._get_statusfile_variables(options))
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variables.update({
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'deopt_fuzzer': bool(options.stress_deopt),
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'endurance_fuzzer': bool(options.combine_tests),
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'gc_stress': bool(options.stress_gc),
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'gc_fuzzer': bool(max([options.stress_marking,
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options.stress_scavenge,
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options.stress_compaction,
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options.stress_gc])),
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})
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return variables
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def _do_execute(self, tests, args, options):
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loader = LoadProc()
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fuzzer_rng = random.Random(options.fuzzer_random_seed)
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combiner = self._create_combiner(fuzzer_rng, options)
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results = ResultsTracker()
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execproc = ExecutionProc(options.j)
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indicators = self._create_progress_indicators(options)
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procs = [
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loader,
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NameFilterProc(args) if args else None,
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StatusFileFilterProc(None, None),
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# TODO(majeski): Improve sharding when combiner is present. Maybe select
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# different random seeds for shards instead of splitting tests.
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self._create_shard_proc(options),
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combiner,
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self._create_fuzzer(fuzzer_rng, options),
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self._create_signal_proc(),
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] + indicators + [
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results,
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self._create_timeout_proc(options),
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self._create_rerun_proc(options),
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execproc,
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]
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self._prepare_procs(procs)
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loader.load_tests(tests)
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# TODO(majeski): maybe some notification from loader would be better?
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if combiner:
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combiner.generate_initial_tests(options.j * 4)
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execproc.start()
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for indicator in indicators:
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indicator.finished()
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print '>>> %d tests ran' % results.total
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if results.failed:
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print '>>> %d tests failed' % results.failed
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if results.failed:
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return 1
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return 0
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def _load_suites(self, names, options):
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suites = super(NumFuzzer, self)._load_suites(names, options)
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if options.combine_tests:
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suites = [s for s in suites if s.test_combiner_available()]
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return suites
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def _prepare_suites(self, suites, options):
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"""Sets additional configurations on test suites based on options."""
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super(NumFuzzer, self)._prepare_suites(suites, options)
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if options.stress_interrupt_budget:
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# Changing interrupt budget forces us to suppress certain test assertions.
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for suite in suites:
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suite.do_suppress_internals()
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def _create_combiner(self, rng, options):
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if not options.combine_tests:
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return None
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return CombinerProc(rng, options.combine_min, options.combine_max,
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options.tests_count)
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def _create_fuzzer(self, rng, options):
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return fuzzer.FuzzerProc(
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rng,
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self._tests_count(options),
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self._create_fuzzer_configs(options),
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self._disable_analysis(options),
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)
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def _tests_count(self, options):
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if options.combine_tests:
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return 1
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return options.tests_count
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def _disable_analysis(self, options):
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"""Disable analysis phase when options are used that don't support it."""
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return options.combine_tests or options.stress_interrupt_budget
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def _create_fuzzer_configs(self, options):
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fuzzers = []
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def add(name, prob, *args):
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if prob:
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fuzzers.append(fuzzer.create_fuzzer_config(name, prob, *args))
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add('compaction', options.stress_compaction)
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add('marking', options.stress_marking)
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add('scavenge', options.stress_scavenge)
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add('gc_interval', options.stress_gc)
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add('interrupt_budget', options.stress_interrupt_budget)
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add('deopt', options.stress_deopt, options.stress_deopt_min)
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return fuzzers
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if __name__ == '__main__':
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sys.exit(NumFuzzer().execute())
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